Identify and avoid the trigger
Keep the area clean and dry
Use mild, fragrance-free soap
Apply a cool compress
Use a gentle moisturizer
Try over-the-counter hydrocortisone cream
Use calamine lotion for itching
Take an antihistamine if needed
Wear loose, breathable clothing
Avoid scratching
Stop using new skincare or laundry products
Change sweaty or wet clothes promptly
Use lukewarm water instead of hot water
Seek medical care if the rash spreads, worsens, or does not improve
Seek urgent care if there is trouble breathing, swelling, fever, blistering, or severe pain